.img-plus-style { 
	 width: 100px; 
	 float:left;
	 opacity: 0.7;
	 margin-top:12px;
} 

.bottom_xf{
	 background-color:#f0eff4; 
	 width:100%; 
	 height:2.8em; 
	 justify-content: center;
	 bottom:0;
	 align-items:center;
         position: fixed;
         display: flex;
 }

 .title-big {
 	height:100%;
	float:left;
	font-size: 40px;
	font-family: "SimHei";
	color: rgb(86, 86, 86);
}